On Electron Heating and Cooling During HF Radio Wave Heating

Details On Electron Heating and Cooling During HF Radio Wave Heating On Electron Heating and Cooling During HF Radio Wave Heating

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsa11b..05g&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SA11B-05

Physics

[2403] Ionosphere / Active Experiments

Scientific paper

In this presentation we show incoherent scatter radar (ISR) observations of electron temperature variations during EISCAT Heating experiments with HF transmission at frequencies above and below the peak ionospheric critical frequency. During the under-dense experiment the pump frequency was changed between pump pulses. The observed temperature variation is compared with numerical solutions to the electron energy equation with Ohmic heating modeling the effect of pump wave plasma heating. Agreement between observations and model is found to be good. The 3500-4000 K electron temperatures observed during the normal HF-heating experiments is used to investigate the temperature dependency of the electron cooling rates.

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